Schema change proposal

[hawyar]

Proposal to add block hash and transaction hash to the event schema. Perhaps this will help with aggregating and querying transactions. And based on our discussion candidate is now validator.

Fields to add:

• block - string
• transaction - string

Do we need to add _hash to the fields. block_hash or block?

Fields to update:

• candidate -> validator
• candidate_list -> validator_list

@elizyoung0011 @shanejearley please advise

[shanejearley]

Great work, onward!